GB1470213A - Diaphragms for electrolytic cells - Google Patents

Diaphragms for electrolytic cells

Info

Publication number
GB1470213A
GB1470213A GB2304374A GB2304374A GB1470213A GB 1470213 A GB1470213 A GB 1470213A GB 2304374 A GB2304374 A GB 2304374A GB 2304374 A GB2304374 A GB 2304374A GB 1470213 A GB1470213 A GB 1470213A
Authority
GB
United Kingdom
Prior art keywords
laminates
asbestos
diaphragm
electrolytic cells
sheet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB2304374A
Inventor
B Grassi
J De Ceuster
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Solvay SA
Original Assignee
Solvay SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Solvay SA filed Critical Solvay SA
Publication of GB1470213A publication Critical patent/GB1470213A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B19/00—Layered products comprising a layer of natural mineral fibres or particles, e.g. asbestos, mica
    • B32B19/02—Layered products comprising a layer of natural mineral fibres or particles, e.g. asbestos, mica the layer of fibres or particles being impregnated or embedded in a plastic substance
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B13/00—Diaphragms; Spacing elements
    • C25B13/04—Diaphragms; Spacing elements characterised by the material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B19/00—Layered products comprising a layer of natural mineral fibres or particles, e.g. asbestos, mica
    • B32B19/04—Layered products comprising a layer of natural mineral fibres or particles, e.g. asbestos, mica next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B19/00—Layered products comprising a layer of natural mineral fibres or particles, e.g. asbestos, mica
    • B32B19/08—Layered products comprising a layer of natural mineral fibres or particles, e.g. asbestos, mica comprising asbestos
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B13/00—Diaphragms; Spacing elements
    • C25B13/04—Diaphragms; Spacing elements characterised by the material
    • C25B13/05—Diaphragms; Spacing elements characterised by the material based on inorganic materials
    • C25B13/06—Diaphragms; Spacing elements characterised by the material based on inorganic materials based on asbestos
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/02—2 layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/03—3 layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2315/00—Other materials containing non-metallic inorganic compounds not provided for in groups B32B2311/00 - B32B2313/04
    • B32B2315/12—Asbestos
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2457/00—Electrical equipment

Abstract

1470213 Laminates SOLVAY & CIE 23 May 1974 [15 June 1973] 23043/74 Heading B5N [Also in Divisions C3 and C7] Laminates comprise a sheet of chrysotile asbestos together with a diaphragm comprising a sheet formed of a homogeneous-mixture of fibres of amphibole asbestos, e.g. crocidolite or anthophyllite, and bound with fibrils of polyvinylidene fluoride. The fibrils may be about 0À01-5 mm. thick, 0À5-50 mm. long and have a specific surface greater than 1 m.<SP>2</SP>/g. The laminates may be made by fixing, e.g. by pressure and heating a sheet of the asbestos against the diaphragm or by sandwiching the diaphragm between two sheets of the asbestos. The laminates are used in electrolytic cells.
GB2304374A 1973-06-15 1974-05-23 Diaphragms for electrolytic cells Expired GB1470213A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE132292A BE800949A (en) 1973-06-15 1973-06-15 DIAPHRAGM FOR AN ELECTROLYSIS CELL

Publications (1)

Publication Number Publication Date
GB1470213A true GB1470213A (en) 1977-04-14

Family

ID=3841997

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2304374A Expired GB1470213A (en) 1973-06-15 1974-05-23 Diaphragms for electrolytic cells

Country Status (14)

Country Link
US (1) US3945910A (en)
JP (1) JPS5036377A (en)
AT (1) AT331818B (en)
BE (1) BE800949A (en)
BR (1) BR7404903D0 (en)
CH (1) CH587356A5 (en)
DE (1) DE2426037A1 (en)
ES (1) ES427114A1 (en)
FI (1) FI176574A (en)
FR (1) FR2235210B1 (en)
GB (1) GB1470213A (en)
NL (1) NL7407779A (en)
SE (1) SE394202B (en)
ZA (1) ZA743378B (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4210515A (en) * 1975-02-10 1980-07-01 Basf Wyandotte Corporation Thermoplastic fibers as separator or diaphragm in electrochemical cells
US4036729A (en) * 1975-04-10 1977-07-19 Patil Arvind S Diaphragms from discrete thermoplastic fibers requiring no bonding or cementing
US4093533A (en) * 1975-12-12 1978-06-06 The Dow Chemical Company Bonded asbestos diaphragms
US4065534A (en) * 1976-04-20 1977-12-27 Ppg Industries, Inc. Method of providing a resin reinforced asbestos diaphragm
US4174259A (en) * 1976-09-24 1979-11-13 Hooker Chemicals & Plastics Corp. Electrolytic cell structure and method of assembly
US4126535A (en) * 1976-11-18 1978-11-21 Basf Wyandotte Corporation Chlorotrifluoroethylene containing polymer diaphragm
LU78350A1 (en) * 1977-10-19 1979-06-01 Solvay METHOD FOR MANUFACTURING A PERMEABLE DIAPHRAGM FOR AN ELECTROLYSIS CELL
US4238303A (en) * 1978-08-14 1980-12-09 E. I. Du Pont De Nemours And Company Diaphragm modifier for chlor-alkali cell
US4180449A (en) * 1978-09-18 1979-12-25 The Dow Chemical Company Bonded asbestos diaphragms and mats
DE2938069A1 (en) * 1979-09-20 1981-04-02 Siemens AG, 1000 Berlin und 8000 München ASBEST DIAPHRAGMS FOR ELECTROCHEMICAL CELLS AND THEIR PRODUCTION
US7709115B2 (en) * 1994-08-25 2010-05-04 University Of Iowa Research Foundation Methods for forming magnetically modified electrodes and articles produced thereby
US6322676B1 (en) 1998-03-25 2001-11-27 University Of Iowa Research Foundation Magnetic composites exhibiting distinct flux properties due to gradient interfaces
US5817221A (en) * 1994-08-25 1998-10-06 University Of Iowa Research Foundation Composites formed using magnetizable material, a catalyst and an electron conductor
US6001248A (en) 1994-08-25 1999-12-14 The University Of Iowa Research Foundation Gradient interface magnetic composites and systems therefor
US6355166B1 (en) 1994-08-25 2002-03-12 The University Of Iowa Research Foundation Magnetically enhanced composite materials and methods for making and using the same
US5871625A (en) * 1994-08-25 1999-02-16 University Of Iowa Research Foundation Magnetic composites for improved electrolysis
US20050213187A1 (en) * 1994-08-25 2005-09-29 University Of Iowa Research Foundation Methods for forming magnetically modified electrodes and articles produced thereby
US6949179B2 (en) * 1994-08-25 2005-09-27 University Of Iowa Research Foundation Methods for forming magnetically modified electrodes and articles produced thereby

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3097990A (en) * 1961-01-16 1963-07-16 Armstrong Cork Co Polytetrafluoroethylene saturated crocidolite fiber product
US3235473A (en) * 1961-12-26 1966-02-15 Pullman Inc Method of producing fuel cell electrodes
US3282875A (en) * 1964-07-22 1966-11-01 Du Pont Fluorocarbon vinyl ether polymers
US3441472A (en) * 1965-10-11 1969-04-29 Hollingsworth & Vose Co Method of forming glass-asbestos water-laid sheet
US3505200A (en) * 1966-12-01 1970-04-07 Hooker Chemical Corp Anthophyllite asbestos diaphragm for chlor-alkali electrolytic cells
CA845032A (en) * 1966-12-03 1970-06-23 Hacker Heinz Gas-tight diaphragms for electrochemical cells
US3694281A (en) * 1969-04-28 1972-09-26 Pullman Inc Process for forming a diaphragm for use in an electrolytic cell
US3702267A (en) * 1970-06-15 1972-11-07 Du Pont Electrochemical cell containing a water-wettable polytetrafluoroethylene separator

Also Published As

Publication number Publication date
US3945910A (en) 1976-03-23
BR7404903D0 (en) 1975-01-21
BE800949A (en) 1973-10-01
FR2235210B1 (en) 1976-12-24
NL7407779A (en) 1974-12-17
SE7407822L (en) 1974-12-16
AU6954874A (en) 1975-12-04
FR2235210A1 (en) 1975-01-24
JPS5036377A (en) 1975-04-05
AT331818B (en) 1976-08-25
CH587356A5 (en) 1977-04-29
SE394202B (en) 1977-06-13
ATA494774A (en) 1975-12-15
DE2426037A1 (en) 1975-01-09
FI176574A (en) 1974-12-16
ES427114A1 (en) 1977-02-16
ZA743378B (en) 1975-05-28

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee